Tablet formulations of pesticides

ABSTRACT

A tablet formulation comprising: (i) a pesticide characterized by low or no water solubility, and (ii) a complementary delivery system containing an organic acid, an inorganic base, a dispersant, a disintegrant, and a wetting agent.

CROSS-REFERENCE TO RELATED APPLICATION

This is a continuation-in-part via the PCT of U.S. application Ser. No. 212,668, filed on Jun. 28, 1988, now abandoned.

BACKGROUND OF THE INVENTION

This invention concerns specific pesticide formulations especially suited for commercial use in tablet form. Several types of tablet formulations are known in the art. See, for instance, G. B. 2,139,893; G. B. 2,184,946; U.S. Pat. No. 4,182,620 and Kokai 51088641. However, these publications do not disclose or suggest the specific combinations of active ingredient(s) and delivery system(s) of this invention. The formulations of this invention afford rapid disintegration and dispersion, even in cold water, of pesticidally active compounds that are water insoluble or of very low water solubility.

SUMMARY OF THE INVENTION

This invention concerns a tablet formulation consisting essentially of, by total weight of the formulated composition:

(i) about 20% to 75% of a pesticide characterized by a melting point of at least about 100° C. and solubility in neutral water at 20° C. of no more than about 5% by weight, and

(ii) about 25% to 80% of a delivery system characterized by a panel of components complementary to the pesticide of (i).

Typically, the delivery system (ii) will contain the following components in these amounts by weight of the total composition:

(a) about 5% to 20% of a dibasic or tribasic organic carboxylic acid or a mixture thereof;

(b) about 7% to 50% of an ammonium or alkali metal carbonate or bicarbonate or a mixture thereof;

(c) about 0.5% to 20% of a dispersant;

(d) about 0.1% to 5% of water-insoluble cross-linked polyvinylpyrrolidone; and

(e) about 0.1% to 5% of an anionic or nonionic wetting agent.

The delivery system is characterized by the interrelationship of components (a) to (e) in the recited ranges to effect rapid disintegration of finely dispersed pesticide particles (i).

By "tablet formulation" is meant the tablet made from the composition described herein, as well as the composition formulated in accordance with this disclosure but not in tablet form.

Contemplated pesticides include those selected from the following classes, including mixtures thereof: herbicides, fungicides, bactericides, insecticides, nematocides, acaricides, and growth regulants.

Preferred dibasic and tribasic organic carboxylic acids include citric, fumaric, phthalic, maleic, malic, oxalic, adipic, glutaric, 2-methyl glutaric, succinic and tartaric, or mixtures of any of them. Preferred carbonates and bicarbonates include the lithium, sodium, and potassium salts or mixtures of any of them.

The term "dispersants" includes sodium salts of naphthalene formaldehyde condensates; sodium, potassium and calcium salts of naphthalene sulfonic acid condensates; lithium, sodium, potassium, calcium, and ammonium salts of lignosulfonates such as Polyfon H® and Lignosol TSF®; sodium, potassium and ammonium salts of polyacrylates and carboxylates, e.g., Tamol 731 SD; sodium salts of maleic anhydride-isobutylene copolymers; and water soluble nonionic polymers such as polyvinylpyrrolidone, polyethylene oxides and cellulose derivatives. Preferred dispersants include the sodium, potassium, ammonium and calcium salts of naphthalene sulfonic acid condensates, with the ammonium salts, specifically Lomar PWA, more preferred.

Water-insoluble, cross-linked polyvinylpyrrolidone disintegrant refers to any of the generic crospovidone disintegrating agents. Specifically preferred is Polyplasdone® XL 10.

The term "anionic wetting agent" includes alkylbenzene sulfonates, alkyl and dialkylnaphthalene sulfonates, alkyl and alcohol sulfates, sulfoalkylamides, carboxylates, alpha-olefin sulfonates and dialkyl sulfosuccinates. The term "nonionic wetting agent" includes acetylenic diols, ethylene oxidepropylene oxide copolymers, alkylphenol ethoxylates, fatty acid ethoxylates, alcohol ethoxylates, sorbitan fatty acid ester ethoxylates and castor oil ethoxylates. The preferred wetting agents are sodium dialkyl sulfosuccinates of which sodium diisobutyl sulfosuccinate (Monawet MB-100), sodium diamyl sulfosuccinate and sodium dicyclohexyl sulfosuccinate are more preferred.

DETAILS OF THE INVENTION

Preferred pesticides are those listed in Table 1.

                                      TABLE 1     __________________________________________________________________________     Cmpd. No.           Common Name                    m.p. (°C.)                           Chemical Name     __________________________________________________________________________     HERBICIDES     1     acifluorfen                    142-160                           5-[2-(chloro-4-(trifluoro                           methyl)phenoxy]-2-nitro-                           benzoic acid     2     asulam   142-144                           methyl [(4-aminophenyl)-                           sulfonyl]carbamate     3     atrazine 175-177                           6-chloro-N-ethyl-N'-(1-                           methylethyl)-1,3,5-                           triazine-2,4-diamine     4     bensulfuron                    185-188                           2-[[[[(4,6-dimethoxy-2-           methyl          pyrimidinyl)amino]-                           carbonyl]amino]sulfonyl]-                           methylbenzoic acid,                           methyl ester     5     bentazon 137-139                           3-(1-methylethyl)-1H)-2,1,3-                           benzothiadiazin-4(3H)-one,                           2,2-dioxide     6     bromacil 158-159                           5-bromo-6-methyl-3-(1-methyl-                           propyl)-2,4(1H,3H)pyrimi-                           dinedione     7     bromoxynil                    194-195                           3,5-dibromo-4-hydroxybenzo-                           nitrile     8     chloramben                    200-201                           3-amino-2,5-dichlorobenzoic                           acid     9     chlorimuron                    >100   2-[[[[(4-chloro-6-methoxy-2-           ethyl           pyrimidinyl)amino]carbonyl]-                           amino]sulfonyl]benzoic                           acid, ether ester     10    chloroxuron                    151-152                           N'-[4-(4-chlorophenoxy)-                           phenyl]N,N-dimethylurea     11    chlorsulfuron                    174-178                           2-chloro-N-[[(4-methoxy-6-                           methyl-1,3,5-triazin-2-yl)-                           amino]carbonyl]benzene-                           sulfonamide     12    chlortoluron                    147-148                           N'-(3-chloro-4-methylphenyl)-                           N,N-dimethylurea     13    clomazone                    151-152                           2-[(2-chlorophenyl)methyl]-                           4,4-dimethyl-3-isoxazoli-                           dinone     14    cyanazine                    166-167                           2-[[4-chloro-6-(ethylamino)-                           1,3,5-triazin-2-yl]amino]-                           2-methylpropanenitrile     15    dazomet  104-105                           tetrahydro-3,5-dimethyl-2H-                           1,3,5-thiadiazine-2-thione     16    desmediphan                    120    ethyl [3-[[(phenylamino)-                           carbonyl]oxy]phenyl]-                           carbamate     17    dicamba  114-116                           3,6-dichloro-2-methoxybenzoic                           acid     18    dichlobenil                    139-145                           2,6-dichlorobenzonitrile     19    dichlorprop                    117-118                           (±)-2-(2,4-dichlorophenoxy)-                           propanoic acid     20    diphenamid                    134-135                           N,N-dimethyl-α-phenylbenzene-                           acetamide     21    dipropetryn                    104-106                           6(ethylthio)-N,N'-bis(1-                           methylethyl)-1,3,5-                           triazine-2,4-diamine     22    diuron   158-159                           N'-(3,4-dichlorophenyl)-N,N-                           dimethylurea     23    thiameturon                    >100   3-[[[[(4-methoxy-6-methyl-                           1,3,5-triazin-2-yl)amino]-                           carbonyl]amino]sulfonyl]-                           2-thiophenecarboxylic acid,                           methyl ester     24    --       >100   2-[[[[N-(4-methoxy-6-methyl-                           1,3,5-triazine-2-yl)-N-                           methylamino]carbonyl]-                           amino]sulfonyl]benzoic                           acid, methyl ester     25    fenac    156    2,3,6-trichlorobenzeneacetic                           acid     26    fenuron  133-134                           N,N-dimethyl-N'-phenylurea     27    fluometuron                    163-164                           N,N-dimethyl-N'-[3-(trifluoro-                           methyl)phenyl]urea     28    fluridone                    151-154                           1-methyl-3-phenyl-5-[3-(tri-                           fluoromethyl)phenyl]-                           4(1H)-pyridinone     29    fomesafen                    220-221                           5-[2-(chloro-4-(trifluoro-                           methyl)phenoxy]-N-(methyl-                           sulfonyl)-2-nitrobenzamide     30    glyphosate                    200    N-(phosphonomethyl)glycine     31    hexazinone                    115-117                           3-cyclohexyl-6-(dimethyl-                           amino)-1-methyl-1,3,5-                           triazine-2,4(1H,3H)-dione     32    imazamethabenz                    >100   6-(4-isopropyl-4-methyl-                           5-oxo-2-imidazolin-2-yl)-                           m-toluic acid, methyl ester                           and 6-(4-isopropyl-4-methyl-                           5-oxo-2-imidazolin-2-yl)-                           p-toluic acid, methyl ester     33    imazaquin                    219-222                           2-[4,5-dihydro-4-methyl-4-                           (1-methylethyl)-5-oxo-1H-                           imidazol-2-yl]-3-quinoline-                           carboxylic acid     34    imazethapyr                    172-175                           (±)-2-(4,5-dihydro-4-methyl-4-                           (1-methylethyl)-5-oxo-1H-                           imidazol-2-yl]-5-ethyl-                           3-pyridinecarboxylic acid     35    ioxynil  209    4-hydroxy-3,5-diiodobenzo-                           nitrile     36    isoproturon                    155-156                           N-(4-isopropylphenyl)-N',N'-                           dimethylurea     37    isouron  119-120                           N'-[5-(1,1-dimethylethyl)-3-                           isoxazolyl]-N,N-dimethylurea     38    isoxaben 176-179                           N-[3-(1-ethyl-1-methylpropyl)-                           5-isoxazolyl]-2,6-dimethoxy-                           benzamide     39    karbutilate                    176-178                           3-[[(dimethylamino)carbonyl]-                           amino]phenyl-(1,1-dimethyl-                           ethyl)carbamate     40    lenacil  316-317                           3-cyclohexyl-6,7-dihydro-1H-                           cyclopentapyrimidine-2,4-                           (3H,5H)dione     41    MCPA     100-115                           (4-chloro-2-methylphenoxy)-                           acetic acid     42    MCPB     100    4-(4-chloro-2-methylphenoxy)-                           butanoic acid     43    mefluidide                    183-185                           N-[2,4-dimethyl-5-[[(tri-                           fluoromethyl)sulfonyl]-                           amino]phenyl]acetamide     44    methabenz-                    119-120                           1,3-dimethyl-3-(2-benzothia-           thiazuron       zolyl)urea     45    methazole                    123-124                           2-(3,4-dichlorophenyl)-4-                           methyl-1,2,4-oxadiazol-                           idine-3,5-dione     46    metribuzin                    125-126                           4-amino-6-(1,1-dimethylethyl)-                           3-(methylthio)-1,2,4-                           triazin-5(4H)-one     47    metsulfuron                    163-166                           2-[[[[(4-methoxy-6-methyl-           methyl          1,3,5-triazin-2-yl)amino]-                           carbonyl]amino]sulfonyl]-                           benzoic acid, methyl ester     48    monuron  174-175                           N'-(4-chlorophenyl)-N,N-                           dimethylurea     49    naptalam 185    2-[(1-naphthalenylamino)-                           carbonyl]benzoic acid     50    neburon  102-103                           1-butyl-3-(3,4-dichloro-                           phenyl)-1-methylurea     51    nitralin 151-152                           4-(methylsulfonyl)-2,6-                           dinitro-N,N-dipropyl-                           aniline     52    norflurazon                    174-180                           4-chloro-5-(methylamino)-2-                           [3-(trifluoromethyl)phenyl]-                           3(2H)-pyridazinone     53    oryzalin 141-142                           4-(dipropylamino)-3,5-dinitro-                           benzenesulfonamide     54    perfluidone                    142-144                           1,1,1-trifluoro-N-[2-methyl-                           4-(phenylsulfonyl)phenyl]-                           methanesulfonamide     55    phenmedipham                    143- 144                           3-[(methoxycarbonyl)amino]-                           phenyl (3-methylphenyl)-                           carbamate     56    picloram >215   4-amino-3,5,6-trichloro-2-                    (DEC)  pyridinecarboxylic acid     57    prometryn                    118-120                           N,N'-bis(1-methylethyl)-6-                           (methylthio)-1,3,5-triazine-                           2,4-diamine     58    pronamide                    155-156                           3,5-dichloro-N-(1,1-dimethyl-                           2-propynyl)benzamide     59    propazine                    212-214                           6-chloro-N,N'-bis(1-methyl-                           ethyl)-1,3,5-triazine-                           2,4-diamine     60    pyrazon  205-206                           5-amino-4-chloro-2-phenyl-                           3(2H)pyridazinone     61    siduron  133-138                           N-(2-methylcyclohexyl)-N'-                           phenylurea     62    simazine 225-227                           6-chloro-N,N'-diethyl-1,3,5-                           triazine-2,4-diamine     63    sulfometuron                    182-189                           2-[[[[(4,6-dimethyl-2-           methyl          pyrimidinyl)amino]carbonyl]-                           amino]sulfonyl]benzoic                           acid, methyl ester     64    tebuthiuron                    161-164                           N-[5-(1,1-dimethylethyl)-                           1,3,4-thiadiazol-2-yl]-                           N,N'-dimethylurea     65    terbacil 175-177                           5-chloro-3-(1,1-dimethyl-                           ethyl)-6-methyl-2,4(1H,3H)-                           pyrimidinedione     66    terbuthyl-                    177-179                           2-(tert-butylamino)-4-chloro-           azine           6-(ethyl-amino)-s-triazine     67    terbutryn                    104-105                           N-(1,1-dimethylethyl)-N'-                           ethyl-6-(methylthio)-1,3,5-                           triazine-2,4-diamine     68    triclopyr                    148-150                           [(3,5,6-trichloro-2-pyri-                           dinyl)oxy]acetic acid     69    2,4-D    140    (2,4-dichlorophenoxy)acetic                           acid     60    2,4-DB   119-120                           4-(2,4-dichlorophenoxy)-                           butanoic acid     71    triasulfuron                    >100   (3-(6-methoxy-4-methyl-1,3,5-                           triazin-2-yl)-1-[2-(2-                           chloroethoxy)phenylsulfonyl]                           urea     72    primisulfuron                    >100   [2-/3-(4,6-bis(difluoro-                           methoxypyrimidin-2-yl-                           ureidosulfonyl)benzoic                           acid methyl ester]     73    --       >100   [2-/3-(4,6-bis(difluoro-                           methoxy)-pyrimidin-2-yl)-                           ureidosulfonyl)-benzoic acid                           methylester]     74    NC-311   170-172                           [5-pyrazolesulfonamide, N-[(4-                           methoxy-6-methyl-                           pyrimidine-2-yl)-amino-                           carbonyl]-4-methoxy-                           carbonyl-1-methyl-]     75    --       160-162                           N-[[(4,6-dimethoxy-2-                           pyrimidinyl)amino]carbonyl]-                           3-(ethylsulfonyl)-2-                           pyridinesulfonamide     76    --       152-159                           2-[[[[(4,6-dimethoxy-2-                           pyrimidinyl)amino]carbonyl]-                           amino]sulfonyl]-N,N-                           dimethyl-3-pyridine-                           carboxamide     77    --       204-206                           Methyl 2-[[[[[4-ethoxy-6-                           (methylamino)-1,3,5-triazin-                           2-yl]amino]carbonyl]amino]-                           sulfonyl]benzoate     FUNGICIDES     78    carbendazim                    302-307                           methyl 2-benzimidazole-                           carbamate     79    thiuram  146    tetramethylthiuram disulfide     80    dodine   136    n-dodecylguanidine acetate     81    chloroneb                    133-135                           1,4-dichloro-2,5-dimethoxy-                           benzene     82    cymoxanil                    160-161                           2-cyano-N-ethylcarbamoyl-                           2-methoxyiminoacetamide     83    captan   178    N-trichloromethylthiotetra-                           hydrophthalamide     84    folpet   177    N-trichloromethylthio-                           phthalimide     85    thiophanate-                    195    dimethyl 4,4'-(o-phenylene)-           methyl          bis(3-thioallophanate)     86    thiabendazole                    304-305                           2-(thiazol-4-yl)benzimida-                           zole     87    chlorothalonil                    240-241                           tetrachloroisophthalo-                           nitrile     88    dichloran                    195    2,6-dichloro-4-nitroaniline     89    captafol 160-161                           cis-N-[1,1,2,2-tetrachloro-                           ethyl)thio]cyclohex-4-                           ene-1,2-dicarbioximide     90    iprodione                    133-136                           3-(3,5-dichlorophenyl)-N-                           (1-methylethyl)-2,4-                           dioxo-1-imidazolidine                           carboxamide     91    vinclozolin                    108    3-(3,5-dihclorophenyl)-5-                           ethenyl-5-methyl-2,4-                           oxazolidinedione     92    kasugamycin                    202-204                           kasugamycin                    (DEC)     93    triadimenol                    121-127                           beta-(4-chlorophenoxy)-α-                           (1,1-dimethylethyl)-1-H-                           1,2,4-triazol-1-ethanol     94    flutriafol                    130    +-α-(2-fluorophenyl-α-(4-                           fluorophenyl)-1H-1,2,4-                           triazole-1-ethanol     95    flusilazol                    52-53  1-[[bis(4-fluorophenyl)-                    HCl 201-203                           methylsilyl)methyl]-1H-                           1,2,4-triazole     96    hexaconazole                    111    (+/-)-α-butyl-α-(2,4-di                           chlorophenyl)-1H-1,2,4-                           triazole-1-ethanol     97    fenarimol                    117-119                           α-(2-chlorophenyl)-α(4-                           chlorophenyl)-5-pyri-                           dinemethanol     BACTERICIDES     98    oxytetracycline                    181-182                            oxytetracycline dihydrate           dihydrate                    (DEC)     ACARICIDES     99    hexathiazox                    108-109                           trans-5-(4-chlorophenyl)-N-                           cyclohexyl-4-methyl-2-oxo-3-                           thiazolidinecarboxamide     100   oxythioquinox                    169-170                           6-methyl-1,3-dithiolo-                           [2,3-B]quinonolin-2-one     101   dienochlor                    122-123                           bis(pentachloro-2,4-cyclo-                           pentadien-1-yl)     102   cyhexatin                    245    tricyclohexyltin hydroxide     INSECTICIDES     103   carbofuran                    150-152                           methylcarbamic acid, ester                           with 2,3-dihydro-2,2-di-                           methyl-7-benzofuranol     104   carbaryl 142    methylcarbamic acid, ester                           with a-naphthol     105   thiodicarb                    173-174                           dimethyl N,N'-[thiobis-                           (N-methylimmo)carbonyl-                           oxy]]-bis[ethanimido-                           thioate]     106   deltamethrin                    98-101 α-cyano-3-phenoxybenzyl-cis-                           3-(2,2-dibromovinyl)-2,2-                           dimethylcyclopropane                           carboxylate     __________________________________________________________________________

The most common method for applying water insoluble pesticides is as fine aqueous dispersions which are sprayed onto the field or crop using ground or aerial spray rigs. The tablets of this invention combine a high level of physical integrity with rapid break-up in cold, hard water using minimal or no agitation while providing fine dispersions of active ingredient. Since the spray nozzles are typically protected against clogging by 50 mesh screens (U.S. mesh size), the dispersions must be fine enough to pass through this size screen without plugging it. This ability is characteristic of pesticide dispersions (i) delivered by the delivery system (ii) of this invention.

High physical integrity of the tablets is desirable so that the tablets themselves can withstand the tabletting operation and survive handling, packaging and shipping without breaking. An axial breaking strength of greater than about 2.0 kiloponds is generally necessary for a tablet to survive such treatment.

Rapid break-up in cold, hard water (greater than about 300 ppm as calcium carbonate) is desirable for the convenience of the growers who require quick turnaround times for the preparation of the dispersions. Generally the tablets of the invention disperse completely in less than 10 minutes, most in less than 5 minutes using even the very cold water drawn from wells in the early spring.

The tablets of the invention with these characteristics are obtained by the combination of the active agent with five inert ingredients: acid, base, dispersant, disintegrant and wetting agent.

It is substantially impossible to obtain rapid break-up of a tablet of substantially water-insoluble active ingredient in aqueous media without the use of effervescence. The reaction of the organic acid and carbonate or bicarbonate base affords carbon dioxide gas which aids in this respect.

A dispersant is required so that the particles of the active ingredient formed during the disintegration of the tablet remain separated in the cold, hard water.

The disintegrant allows the penetration of the water into the interior of the tablet through a wicking or swelling action. Common starch or cellulose-based disintegrants are unsuitable in agricultural applications as they typically form gels on the 50 mesh spray nozzle screens. Hence, the use of a water insoluble cross-linked polyvinylpyrrolidone.

A wetting agent is required to control the size of the carbon dioxide bubbles formed during the reaction of the acid and base. The wetting agent reduces the surface tension between the bubbles and the solid tablet resulting in the formation of smaller bubbles which readily detach from the tablet surface. As a consequence, the tablet remains submerged in the water for a longer period of time, thus improving contact of the entire tablet surface with water.

If a tablet floats immediately after being dropped in the water its top rapidly dries out and the reaction slows down there. This increases the time required for complete dispersion of active ingredient. When a tablet sinks, water wets the entire exterior of the tablet. Then, when the tablet floats to the surface (as a result of the buoyancy of the attached carbon dioxide bubbles when the tablet has partially dispersed and become lighter) the top remains wet so that effervescent reaction continues. Dispersion times for active ingredients formulated as described herein are very much more rapid than in formulations that produce tablets designed for flotation. To ensure that the tablet will sink initially, inert ingredients are employed that produce a tablet with a density greater than that of water (specific gravity greater than 1.00).

Inert ingredients up to 55% of the total weight of the composition can be employed. Inert fillers such as sugar or clay can be added as long as they do not affect the chemical stability of the active ingredient(s). Materials such as glidants, anti-adherents, and lubricants can also be employed to facilitate production in the tablet press. The amounts and types of such ingredients will be readily determinable by one skilled in the tabletting art given the disclosure herein.

The formulation ingredients (all solids) should be dry before being blended, milled and compacted. Drying at 45° to 60° C. for 16 hours in a vacuum oven is sufficient to reduce the water content of the premix to below about 0.5%. This is important so that residual moisture does not initiate the effervescence reaction during storage. The ingredients are typically ground and mixed in a mill, e.g., an air or hammermill. The ground premix is brushed through a 50 or 100 mesh (U.S.A. Standard Sieve Series) screen.

The average particle size of the ground premix should be in the range of 5 to 15 microns. If it is much smaller, the tablet will be strong, but will not break up very fast. If the premix is much larger, the dispersion will not be fine enough to pass a wet screen test used to indicate whether the dispersion will clog the spray nozzle and protective screen discussed previously.

The tablets can be prepared using conventional tablet-making equipment. Their diameter can vary from about 1/2 inch or less, to 3 inches, depending on the tablet weight desired. Flat-faced, beveled-edge punches, with or without a breakline, produce attractive tablets.

To keep the tablet from sticking to the die or punch faces, a lubricant such as magnesium stearate or boric acid can be used. Such lubricants and anti-adherants can be brushed onto the die surface or incorporated into the formulation.

Tablets have been formed in a hydraulic press with a capacity of 40,000 pounds of force. Pressures between about 5,000 and 10,000 psi will produce strong tablets that break up rapidly. Break-up times are determined by dropping a tablet, typically 7 to 14 g, into about 800 to 1000 mL of water. The "end point" of final dispersion is easy to determine because the tablet floats to the surface as it loses weight shortly before it finally disperses.

The resultant dispersion is then poured through a nest of 50/100/200 mesh wet screens. A qualitative judgment is then made about the amount of material that is retained on each screen. A good tablet will leave just a "trace" on the 200 mesh screen, and the larger screens will be free of residue.

The strength of the tablet can be measured by a tester such as the Erweka Model TBH 28. The tablet is stood on end and the machine tip moves to the tablet along an axial path. The force to break the tablet in two is normally recorded in kiloponds (kp). Other units such as newtons (N) or Strong-cobbs (Sc) can also be used. Good tablets normally have strengths in the range of 2 to 10 kp.

The invention is illustrated by the following Examples.

EXAMPLE 1

The following ingredients were milled for 1 min in a Tekmar A 10 analytical laboratory mill. The premix was then passed through a 50 mesh screen and blended well. A 7 g tablet, 13/8 in (3.49 cm) diameter, was made with a hand-operated precision hydraulic press.

    ______________________________________                        Concentration     Ingredients        Weight Percent     ______________________________________     trans-5-(4-chlorophenyl)- .sub.-- N-                        50     cyclohexyl-4-methyl-2-     oxothiazolidine-3-carbox-     amide (insecticide)     Citric Acid        12     Sodium Bicarbonate 25     Lomar PWA          10     Polyplasdone XL-10  2     Monawet MB-100      1     ______________________________________

The tablet broke up completely in 25° C., hard water (420 ppm as CaCO₃) in 4 min, 11 sec. There was only a trace of residue on the 50 mesh wet screen and a trace on the 100 and 200 mesh screens.

EXAMPLE 2

A tablet was prepared from the following ingredients in the same manner as described in Example 1.

    ______________________________________                     Concentration     Ingredients     Weight Percent     ______________________________________     MBC (fungicide) 52.1     Citric Acid     10.0     Sodium Bicarbonate                     25.6     Lomar PWA       5.0     Polyplasdone XL-10                     1.0     Monawet MB-100  1.0     Boric Acid      5.0     Magnesium Stearate                     0.3     ______________________________________

The tablet dispersed completely in 25° C. tap water in 3 min, 23 sec. There was no residue on the 50 mesh wet screen and only a trace on the 100 and 200 mesh screens. Its density was 1.25 g/cc.

EXAMPLE 3

The following ingredients were blended and hammermilled one time through a 0.032 in round-hole screen. A 7 g tablet, 13/8 in diameter, was prepared on a hand-operated hydraulic press.

    ______________________________________                        Concentration     Ingredients        Weight Percent     ______________________________________     3[[[[(4-methoxy-6-methyl-                        52.1     1,3,5-triazin-2-yl)amino]-     carbonyl]amino]sulfonyl]-     2-thiophene carboxylic acid,     methyl ester     Citric Acid        10.0     Sodium Bicarbonate 25.6     Lomar PWA          5.0     Polyplasdone XL-10 1.0     Monawet MP-100     1.0     Boric Acid         5.0     Magnesium Stearate 0.3     ______________________________________

The tablet dispersed complete in 25° C. tap water in 2 min, 24 sec. There was no residue on the 50 mesh wet screen and only a trace on the 100 and 200 mesh screens. It remained submerged for 16 sec.

EXAMPLES 4 to 11

The following formulations were each milled for 1 min in a Tekmar A-10 analytical laboratory mill. A 7 g tablet, 13/8 in (3.49 cm) diameter, was made from each premix with a hand-operated hydraulic press. The formulation used is shown below:

    ______________________________________                     Concentration     Ingredients     Weight Percent     ______________________________________     Active Ingredient                     52.1     Citric Acid     10.0     Sodium Bicarbonate                     25.6     Lomar PWA       5.0     Polyplasdone XL-10                     1.0     Monawet MP-100  1.0     Boric Acid      5.0     Magnesium Stearate                     0.3     ______________________________________

The density, strength, submerged and break up times are shown in Table 2 for eight active ingredients given by Compound number in Table 1. The times are shown as min:sec.

                  TABLE 2     ______________________________________          Active    Density  Strength                                    Time Sub-                                             Break-up     Ex.  Compound  g/cc     kp     merged   Time     ______________________________________     4    23        1.29     3.56   :34      2:32     5    75        1.28     3.26   :30      2:17     6    76        1.23     3.16   :27      3:31     7    24        1.27     4.58   :52      2:17     8     4        1.30     3.97   1:10     3:09     9    11        1.28     3.16   :26      2:13     10   77        1.31     4.68   1:32     3:20     11   63        1.28     3.56   :38      2:23     ______________________________________

EXAMPLE 12

The following ingredients were milled for 1 min and a 7 g tablet, 13/8 in (3.49 cm) diameter, was prepared as described in Example 1.

    ______________________________________                       Concentration     Ingredients       Weight percent     ______________________________________     methyl 2-[[[[(4-methoxy-6-                       50     methyl-1,3,5-triazin-2-yl)-     amino]carbonyl]amino]-     sulfonyl]benzoate     Citric Acid       11     Sodium Bicarbonate                       32     Lomar PWA          5     Polyplasdone XL-10                        1     Monawet MB-100     1     ______________________________________

The tablet dispersed completely in 0° C., hard water (420 ppm as CaCO₃) in 3 min, 15 sec. The resultant dispersion passed through a wet 200 mesh screen with only a trace of residue.

EXAMPLE 13

A tablet from the following formulation was prepared as in Example 12.

    ______________________________________                       Concentration     Ingredients       Weight percent     ______________________________________     methyl 2-[[[[(4-methoxy-6-                       50     methyl-1,3,5-triazin-2-yl)-     amino]carbonyl]amino]-     sulfonyl]benzoate     Phthalic Acid     14     Sodium Bicarbonate                       22     Lomar PWA         10     Polyplasdone XL-10                        2     Monawet MB-100     2     ______________________________________

The tablet broke up completely in 25° C. tap water in 2 min, 35 sec. Its strength was 5.70 kiloponds and it left only a trace of material on a wet 200 mesh screen.

EXAMPLE 14

A tablet was prepared from the following formulation using the same procedure as in Example 12.

    ______________________________________                       Concentration     Ingredients       Weight percent     ______________________________________     methyl 2-[[[[(4-methoxy-6-                       50     methyl-1,3,5-triazin-2-yl)-     amino]carbonyl]amino]-     sulfonyl]benzoate     Succinic Acid     12     Sodium Carbonate  24     Lomar PWA         10     Polyplasdone XL-10                        2     Monawet MB-100     2     ______________________________________

The 7 g tablet broke up in 25° C. tap water in 1 min, 26 sec. It left no residue on a wet 200 mesh screen.

EXAMPLE 15

The following ingredients were blended and hammermilled twice through a 0.032 in round hole screen. A 7.2 g tablet, 13/8 in (3.49 cm) diameter was prepared in a hand-operated Preco hydraulic press.

    ______________________________________                        Concentration     Ingredients        Weight percent     ______________________________________     ethyl 2-[[[[(4-chloro-6-                        51.0     methoxy-2-pyrimidinyl)amino]-     carbonyl]amino]sulfonyl]-     benzoate     Fumaric Acid       7.0     Sodium Bicarbonate 12.5     Polyfon H          7.5     Polyplasdone XL-10 2.0     Monawet MB-100     1.75     Sipernat 50-S (precipitated                        1.25     silica)     Diluex FG (attapulgite clay)                        12.0     Avicel PH 101 (microcrys-                        5.0     talline cellulose)     ______________________________________

The tablet broke up in 50 sec in room temperature water when stirred gently with a spatula. It gave no residue on a wet 60 mesh screen and only a trace on a 200 mesh screen.

EXAMPLES 16 TO 33

By the general procedure of Example 1, tablet formulations can be made whereby the active ingredient pesticide is as described hereafter and the complementary delivery system components are within the following ranges:

(a) about 5% to 20% of a dibasic or tribasic organic carboxylic acid or a mixture thereof;

(b) about 7% to 50% of an ammonium or alkali metal carbonate or bicarbonate or a mixture thereof;

(c) about 0.5% to 20% of a dispersant;

(d) about 0.1% to 5% of water insoluble cross-linked polyvinylpyrrolidone; and

(e) about 0.1% to 5% of an anionic or nonionic wetting agent.

EXAMPLE 16

The pesticide, described in more detail in U.S. Pat. No. 4,127,405, is a compound of the formula: ##STR1## wherein R₁ is ##STR2## R₃ and R₆ are independently hydrogen, fluorine, chlorine, bromine, iodine, alkyl of 1-4 carbon atoms, alkoxy of 1-4 carbon atoms, nitro, trifluoromethyl, cyano, CH₃ S(O)_(n) -- or CH₃ CH₂ S(O)_(n) --;

R₄ is hydrogen, fluorine, chlorine, bromine or methyl;

R₅ is hydrogen, fluorine, chlorine, bromine, methyl or methoxy;

R₇ is hydrogen, fluorine, chlorine, bromine, alkyl of 1-2 carbon atoms or alkoxy of 1-2 carbon atoms;

R₈ is hydrogen, methyl, chlorine or bromine;

R₉ and R₁₀ are independently hydrogen, methyl, chlorine or bromine;

W and Q are independently oxygen or sulfur;

n is 0, 1 or 2;

X is hydrogen, chlorine, bromine, methyl, ethyl, alkoxy of 1-3 carbon atoms, trifluoromethyl, CH₃ S-- or CH₃ OCH₂ --; and

Z is methyl or methoxy, or their agriculturally suitable salts.

EXAMPLE 17

The pesticide, described in more detail in U.S. Pat. No. 4,394,506, is a compound of the formula: N-(heterocyclicaminocarbonyl)arylsulfonamides in which the aryl radical is substituted in the 2-position by a carboxy radical, ester, thioester, or amide thereof; e.g., N-[(4,6-dimethylpyrimidin-2yl)aminocarbonyl]methoxycarbonyl]benzenesulfonamide or N-[(4,6-dimethoxy-1,3,5-triazin-2-yl)aminocarbonyl]-2-methoxycarbonylbenzenesulfonamide.

EXAMPLE 18

The pesticide, described in more detail in U.S. Pat. No. 4,481,029, is a compound of the formula: ##STR3## wherein W' is O or S;

A' is H, Cl, Br, C₁ -C₄ alkyl, OCH₃, NO₂ or CF₃ ;

A is ##STR4## where Q is O, S or ##STR5## T is O or ##STR6## where R^(III) is H, C₁ -C₄ alkyl or C₃ -C₄ alkenyl; when Q is O or S then

R^(I) is C₁ -C₆ alkyl C₃ -C₆ alkenyl; C₃ -C₆ alkynyl; C₂ -C₆ alkyl substituted with 1-3 Cl, F or Br, or one of CN or OCH₃ ; C₃ -C₆ alkenyl substituted with 1-3 Cl; C₃ -C₆ alkynyl substituted with Cl; C₅ -C₆ cycloalkyl; cyclohexenyl; cyclohexyl substituted with 1-3 CH₃ ; C₄ -C₇ cycloalkylalkyl or ##STR7## where R₇ and R₈ are independently H, Cl, CH₃ or OCH₃ ;

n is 0 or 1; and

R₉ is H or CH₃ ;

R₁ is ##STR8## where Z is N, CH or C--F;

X=H, Cl, --CH₃, --OCH₃ or --OCH₂ CH₃ ;

Y=H, Cl, C₁ -C₄ substituted alkyl; with the proviso that when X and Y are both H, then

R^(I) and R^(II) are less than 5 carbons;

X₁ =H, Cl, OCH₃, OCH₂ CH₃ or CH₃ ;

Y₁ =H, OCH₃ or CH₃ ; and

X_(II) =O or CH₂ and further provided that when A contains greater than 5 carbon atoms, then Y contains ≦4 carbon atoms, and their agriculturally suitable salts;

all other substituents being as defined in U.S. Pat. No. 4,481,029.

EXAMPLE 19

The pesticide, described in more detail in U.S. Pat. No. 4,435,205, is a compound of the formula: ##STR9## where W is O or S;

Q is O or NR₅ ;

R₁ is C₁ -C₄ alkyl, C₁ -C₄ alkyl substituted with 1-3 atoms of F, Cl or Br, CH₂ CH₂ OCH₃, CH₂ CH₂ CH₂ OCH₃ or ##STR10## R₂ is H, F, Cl, Br, OCH₃, NO₂, CF₃ or C₁ -C₂ alkyl;

R₃ is H, F, Cl, Br or CH₃ ;

R₄ is H, CH₃ or OCH₃ ;

R₅ is C₁ -C₄ alkyl;

R₆ and R₇ are independently H, F, Cl, Br, CH₃, CF₃, NO₂ or OCH₃ ;

A is ##STR11## X is NH₂, N(CH₃)₂, NHCH₃, C₁ -C₄ alkyl substituted with 1-3 atoms of F, Cl or Br, CH₂ OCH₃, CH₂ OCH₂ CH₃, C₁ -C₄ alkoxy, C₁ -C₂ alkylthio, C₃ -C₄ alkenyloxy, C₃ -C₄ alkynyloxy, OCH₂ CH₂ OCH₃ or C₂ -C₄ alkoxy substituted with 1-3 atoms of F, Cl or Br;

n is 1 or 2;

Y is H, CH₃, OCH₃ or Cl;

X₁ is O or CH₂ ;

Y₁ is H, CH₃, OCH₃ or Cl;

X₂ and Y₂ are independently CH₃ or OCH₃ ; and

Z is CH, N, CCH₃, CBr, CCl, CF, CI, CC₂ H₅, CCH₂ CH₂ Cl or CCH₂ CH═CH₂.

EXAMPLE 20

The pesticide, described in more detail in U.S. Pat. No. 4,420,325, is a compound of the formula: ##STR12## wherein R₁ is F, Cl, Br, CF₃, C₁ -C₃ alkyl, NO₂, CO₂ R₄, SO₂ R₅, SO₂ NR₆ R₇, SO₂ N(OCH₃)CH₃, SO₂ OCH₂ CF₃, OSO₂ R₅ or CH₂ L;

L is SO₂ NR₆ R₇, OCH₃, OC₂ H₅, CO₂ H₅, CO₂ CH₃ or CO₂ C₂ H₅ ;

R₂ is H, Cl, Br, F, CF₃ or OCH₃ ;

R₄ is C₁ -C₃ alkyl, CH₂ CH═CH₂, CH₂ CH₂ Cl, or CH₂ CH₂ OCH₃ ;

R₅ is C₁ -C₃ alkyl or CF₃ ;

R₆ and R₇ are independently C₁ -C₃ alkyl;

R₈ is H or CH₃ ;

R₉ is H or C₁ -C₃ alkyl;

R₃ is ##STR13## W is O or S; X is CH₃, OCH₃ or Cl;

Y is CH₃, C₂ H₅, OCH₃, OC₂ H₅, CH₂ OCH₃, NH₂, NHCH₃ or N(CH₃)₂ ;

Z is CH or N;

X₁ is H, Cl, CH₃, OCH₃ or OC₂ H₅ ;

X₂ is CH₃, C₂ H₅, OCH₃ or OC₂ H₅ ;

X₃ is CH₃ or OCH₃ ; and

Y₁ is CH₃ or OCH₃ ;

and their agriculturally suitable salts.

EXAMPLE 21

The pesticide, described in more detail in U.S. Pat. No. 4,514,211, is a compound of the formula: ##STR14## wherein Q is O, S, SO or SO₂ ;

Q₁ is O, S or SO₂ ;

L is ##STR15## R₁ is H or C₁ -C₄ alkyl; R₂ is H or C₁ -C₄ alkyl;

R₃ is H or CH₃ ;

R₄ is H, Cl, CH₃, CF₃, OCH₃, Br, F, SCH₃ or OCF₂ H;

R₅ is H, CH₃, Cl, Br, NO₂, CO₂ R₇, SO₂ R₈, OSO₂ R₉, SO₂ NR₁₀ R₁₁, F, CF₃, SCH₃, OCF₂ H or SO₂ N(OCH₃)CH₃ ;

R₆ is H, Cl, Br or C₁ -C₄ alkyl;

R'₆ is H, CH₃, Cl or Br;

R₇ is C₁ -C₃ alkyl, CH₂ CH═CH₂, CH₂ CH₂ OCH₃ or CH₂ CH₂ Cl;

R₈ is C₁ -C₃ alkyl;

R₉ is C₁ -C₃ alkyl or CF₃ ;

R₁₀ and R₁₁ are independently C₁ -C₂ alkyl;

R₁₂ is H or CH₃ ;

W is O or S;

A is ##STR16## X is H, CH₃, OCH₃, Cl, F, OCF₂ H or SCF₂ H; Y is CH₃, OCH₃, OC₂ H₅, CH₂ OCH₃, NH₂, NHCH₃, N(CH₃)₂, CH(OCH₃)₂, CH(OCH₂ CH₃)₂, C₂ H₅, CF₃, CH₂ ═CHCH₂ O, CH.tbd.CCH₂ O, CF₃ CH₂ O, OCH₂ CH₂ Cl, OCH₂ CH₂ Br, OCH₂ CH₂ F, CN, CH₂ OCH₂ CH₃, OCH₂ CH₂ OCH₃ or GCF₂ T wherein G is O or S and T is H, CHClF, CHBrF, CF₂ H or CHFCF₃ ;

Z is CH, N, CCH₃, CC₂ H₅, CCl or CBr;

Y₁ is O or CH₂ ;

X₁ is CH₃, OCH₃, OC₂ H₅ or OCF₂ H;

X₂ is CH₃, C₂ H₅ or CH₂ CF₃ ;

Y₂ is C₂ H₅, CH₃, OCH₃, OC₂ H₅, SCH₃ or SC₂ H₅ ; and

X₃ is CH₃ or OCH₃.

EXAMPLE 22

The pesticide, described in more detail in U.S. Pat. No. 4,547,215, is a compound of the formula: ##STR17## wherein R is C₂ H₅ or CH(CH₃)₂ ;

and their agriculturally suitable salts.

EXAMPLE 23

The pesticide, described in more detail in U.S. Pat. No. 4,548,638, is a compound of the formula: ##STR18## wherein R is CO₂ CH₃, CO₂ CH₂ CH₃, CO₂ CH₂ CH₂ CH₃, CO₂ CH₂ CH═CH₂, CO₂ CH(CH₃), CO₂ CH₂ CH₂ Cl, SO₂ N(CH₃)₂ or OSO₂ CH₃.

EXAMPLE 24

The pesticide, described in more detail in U.S. Pat. No. 4,479,821, is a compound of the formula: ##STR19## wherein A is a C₁ -C₆ alkyl radical which is substituted by C₁ -C₄ alkoxy, C₁ -C₄ alkylthio, C₁ -C₄ alkylsulfinyl or C₁ -C₄ alkylsulfonyl;

X is oxygen, sulfur, a sulfinyl or sulfonyl bridge;

Z is oxygen or sulfur;

m is 1 or 2;

R₂ is hydrogen, halogen, C₁ -C₅ alkyl, C₂ -C₅ alkenyl, C₁ -C₄ haloalkyl, or a radical --Y--R₅, --COOR₆, --NO₂ or --CO--NR₇ R₈ ;

R₃ and R₄, each independently of the other, are hydrogen, C₁ -C₄ alkyl, C₁ -C₄ alkoxy, C₁ -C₄ alkylthio, C₁ -C₄ haloalkyl, halogen or alkoxyalkyl of at most 4 carbon atoms;

R₅ and R₆, each independently of the other, are C₁ -C₅ alkyl, C₂ -C₅ alkenyl or C₂ -C₆ alkynyl;

R₇ and R₈, each independently of the other, are hydrogen, C₁ -C₅ alkyl, C₂ -C₅ alkenyl or C₂ -C₆ alkynyl; and

Y is oxygen, sulfur, a sulfinyl or sulfonyl bridge, and salts of these compounds.

EXAMPLE 25

The pesticide, described in more detail in U.S. Pat. No. 4,566,898, is a compound of the formula: ##STR20##

EXAMPLE 26

The pesticide, described in more detail in U.S. Pat. No. 4,435,206, is a compound of the formula: ##STR21## wherein R is ##STR22## R₁ is H, Cl, Br, F, C₁ -C₄ alkyl, C₁ -C₄ alkoxy, C₁ -C₄ alkylthio, NO₂, CF₃, COOR₅ or SO₂ NR₆ R₇ ;

R₂ is H, Cl, Br or CH₃ ;

R₃ and R₄ are independently H or CH₃ ;

R₅ is C₁ -C₆ alkyl, C₃ -C₆ alkenyl, CH₂ CH₂ OCH₃, CH₂ CH₂ OCH₂ CH₃, CH₂ CH₂ CH₂ OCH₃ or CH₂ CH₂ Cl;

R₆ and R₇ are independently CH₃ or CH₃ CH₂ ;

W is oxygen or sulfur;

X is CH₃, --OCH₃ or --OCH₂ CH₃ ;

Y is H, Cl, CH₃, CF₃, --NHCH₃, --N(CH₃)₂ --, --CH₂ OR₈, --CH₂ CH₂ OR₈, --OCH₂ CF₃ or VR₆ ;

Z is CH or N;

V is oxygen or sulfur;

R₈ is CH₃, CH₃ CH₂ --, CH₂ CO₂ R₈, --CH₂ CH₂ OR⁶, C(CH₃)HCO₂ R₈ or CH₂ CH₂ CO₂ R₈ ;

Y₁ is H, CH₃ or OCH₃ ; and

X₁ is H, Cl, --OCH₃, --OCH₂ CH₃ or CH₃ ;

and agricultural salts thereof.

EXAMPLE 27

The pesticide, described in more detail in U.S. Pat. No. 4,514,212, is a compound of the formula: ##STR23## and the salts thereof with amines, alkali metal or alkaline earth metal bases or with quaternary ammonium bases wherein:

Q is fluorine, fluoromethyl, chloromethyl, trichloromethyl, 1,2-dichloroethyl, 1,2-dibromoethyl, 1,2-dichloropropyl, 1,2-dibromopropyl, 1,2-dibromoisobutyl, 1,2-dichloro-1-methyl-ethyl or 1,2-dibromo-1-methylethyl;

X is oxygen, sulfur, a sulfinyl or sulfonyl bridge;

Z is oxygen or sulfur;

R₂ is hydrogen, halogen, C₁ -C₅ alkyl, C₂ -C₅ alkenyl, C₁ -C₄ haloalkyl, or a radical --Y--R₅, --COOR₆, --NO₂ or --CO--NR₇ --R₈ ;

R₃ and R₄, each independently of the other, are hydrogen, C₁ -C₄ alkyl, C₁ -C₄ alkoxy, C₁ -C₄ alkylthio, C₁ -C₄ haloalkyl, halogen or alkoxyalkyl of at most 4 carbon atoms;

R₅ and R₆, each independently of the other, are C₁ -C₅ alkyl, C₂ -C₅ alkenyl or C₂ -C₆ alkynyl;

R₇ and R₈, each independently of the other, are hydrogen, C₁ -C₅ alkyl, C₂ -C₅ alkenyl or C₂ -C₆ alkynyl; and

Y is oxygen, sulfur, a sulfinyl or sulfonyl bridge.

EXAMPLE 28

The pesticide, described in more detail in U.S. Pat. No. 4,478,635, is a compound of the formula: ##STR24## wherein X is a radical of the formula: ##STR25## Y is C₁ -C₃ alkyl, C₁ -C₃ haloalkyl, C₁ -C₃ alkoxy, C₁ -C₃ haloalkoxy, C₂ -C₃ alkoxyalkyl, C₁ -C₃ alkylthio, halogen or --NR₁₆ R₁₇ ;

Z is oxygen or sulfur;

R₁ is hydrogen, halogen, cyano, nitro, C₁ -C₄ haloalkyl, C₁ -C₄ alkyl, C₁ -C₄ alkoxy, --CO--R₆, --NR₇ R₈, --S(O)_(m) --C₁ -C₄ alkyl or --SO₂ R₉ ;

R₂ is hydrogen, fluorine, chlorine, bromine, nitro, trifluoromethyl, --NR₂₀ R₂₁, methyl, ethyl, methoxy, ethoxy or --S(O)_(m) --C₁ -C₄ alkyl;

R₃ is hydrogen, fluorine, chlorine, bromine, amino, nitro or methoxy;

R₆ is hydrogen, C₁ -C₄ alkyl, C₁ -C₃ alkenyloxy, C₃ -C₅ alkynyloxy, C₁ -C₄ haloalkyl, C₁ -C₅ alkylthio, phenoxy, benzyloxy, --NR₁₀ R₁₁ or C₁ -C₅ alkoxy which is unsubstituted or substituted by 1 to 3 halogen atoms or C₁ -C₃ alkoxy;

R₇ is hydrogen, methoxy, ethoxy, C₁ -C₄ alkyl or --CO--R₁₂ ;

R₈ is hydrogen or --CO--R₁₂ ;

R₉ is an --O--R₁₃ or --NR₁₄ R₁₅ group;

R₁₁ is C₁ -C₄ alkyl which is unsubstituted or substituted by 1 to 3 halogen atoms, or is phenyl or benzyl;

R₁₂ is hydrogen, C₁ -C₄ alkyl or C₁ -C₄ alkoxy; and

m is 0, 1 or 2;

and R₄ has the same meaning as R₂ ; R₅ has the same meaning as R₁ ; R₁₀, R₁₁, R₁₄ and R₂₀ each have the same meaning as R₇ ; and R₁₂, R₁₅, R₁₆, R₁₇ and R₂₁ each have the same meaning as R₈.

EXAMPLE 29

The pesticide, described in more detail in U.S. Pat. No. 4,634,465, is a compound of the formula: ##STR26## wherein Z is oxygen or sulfur;

E is nitrogen or ═C--;

R₁ is hydrogen, halogen, nitro, C₁ -C₄ alkyl, C₁ -C₄ haloalkyl, C₁ -C₄ alkoxy, C₁ -C₄ haloalkoxy, C₁ -C₄ alkoxycarbonyl, C₁ -C₄ alkylthio, C₁ -C₄ alkylsulfinyl, C₁ -C₄ alkylsulfonyl or C₂ -C₅ alkoxyalkoxy;

R₂ is hydrogen, C₁ -C₄ alkyl or C₁ -C₃ alkoxy;

R₃ and R₄, each independently of the other, are hydrogen, C₁ -C₄ alkyl, C₁ -C₄ alkoxy, C₁ -C₄ haloalkoxy, C₁ -C₄ haloalkylthio, C₁ -C₄ alkylthio, halogen, C₂ -C₅ alkoxyalkyl, C₂ -C₅ alkoxyalkoxy or --NR₅ R₆, wherein R₅ and R₄ are hydrogen or C₁ -C₄ alkyl; and

A is an unsubstituted or substituted bridge of 3 or 4 atoms which contains 1 or 2 oxygen, sulfur or nitrogen atoms and, together with the linking carbon atom, forms a non-aromatic 5- or 6-membered heterocyclic ring system, with the proviso that two oxygen atoms are separated by at least one carbon atom and that oxygen and sulfur atoms are only linked to each other if the sulfur atom takes the form of the --SO-- or --SO₂ -- group.

EXAMPLE 30

The pesticide, described in more detail in EPA-202,830, is: 2-[[N-(4-methoxy-6-methyl-1,3,5-triazin-2-yl)-N-methylaminocarbonyl]aminosulfonyl]benzoic acid, methyl ester.

EXAMPLE 31

The pesticide, described in more detail in EPA-237,292, is a compound of the formula: ##STR27## wherein J is ##STR28## R is H or CH₃ ; R₁ is H or C₁ -C₃ alkyl;

R₂ is C₁ -C₃ alkyl or C₁ -C₂ alkoxy; or

R₁ and R₂ may be taken together to form --(CH₂)_(n) --, wherein n is 2, 3 or 4;

R₃ is H, Cl, F, Br, CH₃, CF₃, OCH₃ or OCF₂ H; and

X is CH₃, CH₂ F, CH₂ CH₃, OCH₃, OCH₂ CH₃, Cl, OCF₂ H or CH₂ OCH₃.

EXAMPLE 32

The pesticide, described in more detail in EPA-87,780, is a compound of the formula: ##STR29## wherein A represents a hydrogen atom, a C₁ -C₈ alkyl group or a phenyl group which may be substituted with C₁ -C₈ alkyl groups, halogen atoms or nitro groups; B and C represent independently hydrogen atoms, halogen atoms, nitro groups, C₁ -C₈ alkyl groups, arylalkyl groups, C₁ -C₈ alkoxy groups, haloalkyl groups, --CO₂ R [where R is a hydrogen atom, a C₁ -C₈ alkyl group, an allyl group or a propargyl group), --CONR₁ R₂ (where R₁ is a hydrogen atoms, a C₁ -C₈ alkyl group or a phenyl group, R₂ is a hydrogen atom or a C₁ -C₈ alkyl group, or R₁ and R₂ taken together may represent --(CH₂)_(m) --(m is 4, 5 or 6), --CH₂ CH₂ OCH₂ CH₂ -- or --CH₂ CH₂ N(CH₃)CH₂ CH₂ --], --S(O)_(n) R₃ (where R₃ is a C₁ -C₈ alkyl group, a phenyl group or an arylalkyl group and n is 0, 1 or 2), --SO₂ NR₄ R₅ [where R₄ is a C₁ -C₈ alkyl group, R₅ is a hydrogen atom or a C₁ -C₈ alkyl group, or R₄ and R₅ taken together may represent --(CH₂)_(p) -- (p is 4, 5 or 6), --CH₂ CH₂ OCH₂ CH₂ -- or --CH₂ CH₂ N(CH₃)CH₂ CH₂ --] or a phenyl group which may be substituted with C₁ -C₈ alkyl groups, halogen atoms or nitro groups; D represents a hydrogen atom or a C₁ -C₈ alkyl group; X and Y represent independently hydrogen atoms, halogen atoms, C₁ -C₈ alkyl groups, C₁ -C₈ alkoxy groups, C₁ -C₈ alkoxyalkyl groups, --CF₃ groups, C₁ -C₈ haloalkoxy groups, alkylamino groups, dialkylamino groups, ##STR30## (where R₆ and R₇ each represent hydrogen atoms or C₁ -C₈ alkyl groups) or either X or Y may form a five-membered ring containing an oxygen atom together with X; and X represents a nitrogen atom or C--R₈ (where R₈ represents a hydrogen atom, a haloalkyl group or may form a five-membered ring containing an oxygen atom together with X or Y).

EXAMPLE 33

The pesticide, described in more detail in U.S. Pat. No. 4,710,221, is a compound of the formula: ##STR31## wherein R is H or CH₃ ;

R₁ is C₁ -C₃ alkyl, C₃ -C₄ alkoxyalkyl, C₂ -C₄ haloalkyl, C₃ -C₄ alkenyl or C₃ -C₄ alkynyl;

R₂ is C₂ -C₆ alkoxy, C₃ -C₆ cycloalkoxy, C₄ -C₆ cycloalkylalkoxy, C₁ -C₆ haloalkoxy, C₂ -C₆ alkenyloxy, C₂ -C₆ haloalkenyloxy, C₃ -C₆ alkynyloxy, C₃ -C₆ haloalkynyloxy, C₂ -C₄ alkoxyalkoxy, C₂ -C₄ haloalkoxyalkoxy, C₂ -C₄ alkylthioalkoxy, C₂ -C₄ haloalkylthioalkoxy, C₂ -C₄ alkylsulfinylalkoxy, C₂ -C₄ haloalkylsulfinylalkoxy, C₂ -C₄ alkylsulfonylalkoxy, C₂ -C₄ haloalkylsulfonylalkoxy, C₂ -C₄ cyanoalkoxy, OCH₂ C(O)CH₃, OCH₂ CH₂ C(O)CH₃, C₂ -C₄ aminoalkoxy, C₁ -C₈ alkylthio, C₃ -C₆ cycloalkylthio, C₄ -C₆ cycloalkylalkylthio, C₁ -C₈ haloalkylthio, C₂ -C₆ alkenylthio, C₂ -C₆ haloalkenylthio, C₃ -C₆ alkynylthio, C₃ -C₆ haloalkynylthio, C.sub. 2 -C₄ alkoxyalkylthio, C₂ -C₄ haloalkoxyalkylthio, C₂ -C₄ alkylthioalkylthio, C₂ -C₄ haloalkylthioalkylthio, C₂ -C₄ cyanoalkylthio, SCH₂ C(O)CH₃, SCH₂ CH₂ C(O)CH₃, C₂ -C₄ aminoalkylthio, SC₆ H₅, SCH₂ C₆ H₅, C₁ -C₈ alkylsulfinyl, C₃ -C₆ cycloalkylsulfinyl, C₄ -C₆ cycloalkylalkylsulfinyl, C₁ -C₈ haloalkylsulfinyl, C₂ -C₆ alkenylsulfinyl, C₂ -C₆ haloalkenylsulfinyl, C₃ -C₆ alkynylsulfinyl, C₃ -C₆ haloalkynylsulfinyl, C₂ -C₄ alkoxyalkylsulfinyl, C₂ -C₄ haloalkoxyalkylsulfinyl, C₂ -C₄ cyanoalkylsulfinyl, S(O)CH₂ C(O)CH₃, S(O)CH₂ CH₂ C(O)CH₃, C₂ -C₄ aminoalkylsulfinyl, C₂ -C₈ alkylsulfonyl, C₃ -C₆ cycloalkylsulfonyl, C₄ -C₆ cycloalkylalkylsulfonyl, C₁ -C₈ haloalkylsulfonyl, C₂ -C₆ alkenylsulfonyl, C₂ -C₆ haloalkenylsulfonyl, C₃ -C₆ alkynylsulfonyl, C₃ -C₆ haloalkynylsulfonyl, C₂ -C₄ alkoxyalkylsulfonyl, C₂ -C₄ haloalkoxyalkylsulfonyl, C₂ -C₄ cyanoalkylsulfonyl, SO₂ CH₂ C(O)CH₃, SO₂ CH₂ CH₂ C(O)CH₃, C₂ -C₄ aminoalkylsulfonyl, CH₂ F, CHF₂, CH₂ Cl, CHCl₂, CH₂ Br, CHBr₂, C₂ -C₆ alkyl substituted with 1-3 atoms of F, Cl or Br, C₂ -C₆ alkenyl, C₂ -C₆ haloalkenyl, C.tbd.CH, C₂ -C₆ haloalkynyl, OC(O)C₁ -C₄ alkyl, CH₂ C(O)NR_(a) R_(b), NHCH₃, NR_(b) R_(c) or C₁ -C₄ alkyl substituted with C₁ -C₄ alkoxy, C₃ -C₄ cycloalkoxy, cyclopropylmethoxy, C₁ -C₄ haloalkoxy, C₂ -C₄ alkenyloxy, C₂ -C₄ haloalkenyloxy, C₃ -C₄ alkenyloxy, C₃ -C₄ haloalkynyloxy, C₂ -C₄ alkoxyalkoxy, C₂ -C₄ aminoalkoxy, C₁ -C₄ alkylcarbonyloxy, C₁ -C₄ haloalkylcarbonyloxy, C₁ -C₄ carbamoyloxy, C₁ -C₄ alkoxycarbonyloxy, OH, OP(O) (OC₁ -C₂ alkyl)₂, C₁ -C₄ alkylsulfonyloxy, C₁ -C₂ haloalkylsulfonyloxy, OSi(CH₃)₃, OSi(CH₃)₂ C(CH₃)₃, C₁ -C₄ alkylthio, C₃ -C₄ cycloalkylthio, cyclopropylmethylthio, C₁ -C₄ haloalkylthio, C₂ -C₄ alkenylthio, C₂ -C₄ haloalkenylthio, C₃ -C₄ alkynylthio, C₃ -C₄ haloalkynylthio, C₂ -C₄ alkoxyalkylthio, C₂ -C₄ aminoalkylthio, SH, SP(O) (OC₁ -C₂ alkyl)₂, C₁ -C₄ alkylsulfinyl, C₃ -C₄ cycloalkylsulfonyl, cyclopropylmethylsulfinyl, C₁ -C₄ haloalkylsulfinyl, C₂ -C₄ alkenylsulfinyl, C₂ -C₄ haloalkenylsulfinyl, C₃ -C₄ alkynylsulfinyl, C₃ -C₄ haloalkynylsulfinyl, C₂ -C₄ alkoxyalkylsulfinyl, C₂ -C₄ aminoalkylsulfinyl, C₁ -C₄ alkylsulfonyl, C₃ -C₄ cycloalkylsulfonyl, cyclopropylmethylsulfonyl, C₁ -C₄ haloalkylsulfonyl, C₂ -C₄ alkenylsulfonyl, C₂ -C₄ haloalkenylsulfonyl, C₃ -C₄ alkynylsulfonyl, C₃ -C₄ haloalkynylsulfonyl, C₂ -C₄ alkoxyalkylsulfonyl or C₂ -C₄ aminoalkylsulfonyl;

R_(a) and R_(b) are independently H or C₁ -C₃ alkyl;

R_(c) is C₂ -C₄ alkyl, cyclopropylmethyl, C₂ -C₄ cyanoalkyl, CH₂ C(O)CH₃, CH₂ CH₂ C(O)CH₃, C₁ -C₄ haloalkyl, C₃ -C₄ alkenyl, C₃ -C₄ haloalkenyl, C₃ -C₄ alkynyl, C₃ -C₄ haloalkynyl, C₁ -C₄ alkyl substituted with C₁ -C₄ alkoxy, C₁ -C₄ alkylthio, C₁ -C₄ alkylsulfinyl, C₁ -C₄ alkylsulfonyl, OH, NH₂, NHCH₃ or N(CH₃)₂ ;

X is CH₃, OCH₃, OC₂ H₅, Cl or Br;

Y is C₁ -C₂ alkyl, C₁ -C₂ alkoxy, OCH₂ CH₂ F, OCH₂ CHF₂, OCH₂ CF₃, NHCH₃ or N(CH₃)₂ ; and

Z is CH or N; and

their agriculturally suitable salts. 

What is claimed is:
 1. A tablet formulation consisting essentially of, by total weight of the formulated composition:(i) 20% to 75% of a pesticide or growth regulant having a melting point of at least 100° C. and a water solubility at 20° C. of no more than 5% by weight, and (ii) 25% to 80% of a delivery system characterized by a panel of components complementary to the pesticide of (i) that consists essentially of the following components:(a) 5% to 20% of a dibasic or tribasic organic carboxylic acid or a mixture thereof; (b) 7% to 50% of an ammonium or alkali metal carbonate or bicarbonate or a mixture thereof; (c) 0.5% to 20% of a dispersant, (d) about 0.1% to 5% of water-insoluble cross-linked polyvinylpyrrolidone, and (e) 0.1% to 5% of an anionic or nonionic wetting agent;the formulation forming a dispersion in water, fine enough to pass a 50 mesh screen without clogging it and having a specific gravity greater than 1.00.
 2. A tablet formulation according to claim 1 wherein the pesticide is a herbicide.
 3. A tablet formulation according to claim 1 wherein the pesticide is a fungicide.
 4. A tablet formulation according to claim 1 wherein the pesticide is an insecticide.
 5. A tablet formulation according to claim 1 wherein the pesticide is a nematocide.
 6. A tablet formulation according to claim 1 wherein the pesticide is an acaricide.
 7. A tablet formulation according to claim 1 wherein the pesticide is a bactericide.
 8. A tablet formulation according to claim 1 wherein a growth regulant is used.
 9. A tablet formulation according to claim 2 wherein the herbicide is 3-cyclohexyl-6-dimethylamino-1-methyl-1,3,5-triazine-2,4(1H, 3H)-dione.
 10. A tablet formulation according to claim 2 wherein the herbicide is (2,4-dichlorophenoxy) acetic acid.
 11. A tablet formulation according to claim 2 wherein the herbicide is a sulfonamide.
 12. A tablet formulation according to claim 11 wherein the sulfonamide is 3-[[[[(4-methoxy-6-methyl-1,3,5-triazin-2-yl)amino]carbonyl]amino]sulfonyl]-2-thiophene carboxylic acid, methyl ester.
 13. A tablet formulation according to claim 11 wherein the sulfonamide is methyl 2-[[[[(4-methoxy-6-methyl-1,3,5-triazin-2-yl)-amino]carbonyl]amino]sulfonyl]benzoate.
 14. A tablet formulation according to claim 11 wherein the sulfonamide is ethyl 2-[[[[(4-chloro-6-methoxy-2-pyrimidinyl)amino]carbonyl]amino]sulfonyl]benzoate.
 15. A tablet formulation according to claim 12 comprising 52% of said sulfonamide, 10% of citric acid, 26% of sodium bicarbonate, 5% of a condensate of naphthalene sulfonic acid salt and ammonium salt, 1% of cross-linked polyvinylpyrrolidone, 1% of sodium dialkyl sulfosuccinates, and 5% of boric acid.
 16. A tablet formulation according to claim 15 comprising 52.1% of said sulfonamide, 25.6% of sodium bicarbonate and 0.3% of magnesium stearate.
 17. A tablet formulation according to claim 3 wherein the fungicide is methyl-2-benimidazole carbamate.
 18. A tablet formulation according to claim 4 wherein the insecticide is trans-5-(4-chlorophenyl)-N-cyclohexyl-4-methyl-2-oxothiazolidine-3-carboxamide.
 19. A tablet formulation according to claim 6 wherein the acaricide is (4RS, 5RS)-5-(4-chlorophenyl)-N-cyclohexyl-4-methyl-2-oxo-1,3-thiazolidine-3-carboxamide.
 20. A tablet formulation according to any one of claims 1 to 19 in the form of a tablet. 